<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
<style>
    .h1{
        width: 300px;
        height: 169px;
        background-image: url("../拓展imgs/11.jpg");
        margin: 100px auto;
    }
    .h1-z{
        position: relative;
        width: 20px;
        height: 40px;
        top: 70px;
        background-color: rgba(35, 1, 2,60%);
        line-height: 40px;
        font-size: 20px;
        color: white;
        cursor: pointer;
    }
    .h1-y{
        position:relative;
        width: 20px;
        height: 40px;
        top: 30px;
        left: 280px;
        background-color: rgba(35, 1, 2,60%);
        line-height: 40px;
        font-size: 20px;
        color: white;
        cursor: pointer;
    }
    .h1-x{
        width: 80px;
        height: 13px;
        background-color: rgba(255,255,255,30%);
        border-radius: 50px;
        position: relative;
        top: 70px;
        left: 100px;
    }
    #h1-x-1{
        width: 6px;
        height: 6px;
        border-radius: 6px;
        background-color: rgb(255, 165, 0);
        float: left;
        margin-left: 0px;
    }
    .h1-x td{
        width: 6px;
        height: 6px;
        border-radius: 6px;
        background-color: rgb(255, 255, 255);
        margin-left: 6px; 
        float: left;
        cursor: pointer;
    }
    .h1 td:hover{
        transition: all .5s;
        background-color: rgb(255, 165, 0);
    }
</style>

<div class="h1">
    <div class="h1-z"><</div>
    <div class="h1-y">></div>
    <div class="h1-x">
        <table>
        <th>
            <td id="h1-x-1"></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </th>
        </table>
    </div>
</div>
</body>
</html>